A data-based comparison of methods for reducing the peak volume flow rate in a district heating system
Agner, Felix LU ; Trabert, Ulrich LU ; Rantzer, Anders LU
and Orozaliev, Janybek
(2024)
In Smart Energy
- Abstract
- This work concerns reduction of the peak flow rate of a district heating grid, a key system property which is bounded by pipe dimensions and pumping capacity. The peak flow rate constrains the number of additional consumers that can be connected, and may be a limiting factor in reducing supply temperatures when transitioning to the 4th generation of district heating. We evaluate a full year of operational data from a subset of customer meters in a district heating system in Germany. We consider the peak flow rate reduction that could be achieved with full a posteriori knowledge of this data. Three strategies for reducing the peak flow rate are investigated: A load shifting demand response strategy, an upper limitation in substation return... (More)
- This work concerns reduction of the peak flow rate of a district heating grid, a key system property which is bounded by pipe dimensions and pumping capacity. The peak flow rate constrains the number of additional consumers that can be connected, and may be a limiting factor in reducing supply temperatures when transitioning to the 4th generation of district heating. We evaluate a full year of operational data from a subset of customer meters in a district heating system in Germany. We consider the peak flow rate reduction that could be achieved with full a posteriori knowledge of this data. Three strategies for reducing the peak flow rate are investigated: A load shifting demand response strategy, an upper limitation in substation return temperatures, and an upper limitation on each substation’s volume flow rate. We show that imposing up to to 18 % load flexibility for the customers provides an equal reduction in the peak system flow rate under the load shifting strategy. The limited return temperature strategy is less efficient at curtailing the peak flow rate, but provides an overall reduction of volume flow rates. Finally, the flow rate limitation method can introduce new, higher flow rate peaks, reducing performance. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3521de46-4a89-4663-a312-28570adb9c1e
- author
- Agner, Felix
LU
; Trabert, Ulrich
LU
; Rantzer, Anders
LU
and Orozaliev, Janybek
- organization
- publishing date
- 2024-01-31
- type
- Contribution to journal
- publication status
- submitted
- subject
- in
- Smart Energy
- publisher
- Elsevier
- ISSN
- 2666-9552
- project
- Scalable Control of Interconnected Systems
- Scalable Control for Increased Flexibility in District Heating Networks
- language
- English
- LU publication?
- yes
- id
- 3521de46-4a89-4663-a312-28570adb9c1e
- alternative location
- https://arxiv.org/abs/2403.16738
- date added to LUP
- 2024-03-26 10:32:47
- date last changed
- 2024-04-12 15:38:30
@article{3521de46-4a89-4663-a312-28570adb9c1e,
abstract = {{This work concerns reduction of the peak flow rate of a district heating grid, a key system property which is bounded by pipe dimensions and pumping capacity. The peak flow rate constrains the number of additional consumers that can be connected, and may be a limiting factor in reducing supply temperatures when transitioning to the 4th generation of district heating. We evaluate a full year of operational data from a subset of customer meters in a district heating system in Germany. We consider the peak flow rate reduction that could be achieved with full a posteriori knowledge of this data. Three strategies for reducing the peak flow rate are investigated: A load shifting demand response strategy, an upper limitation in substation return temperatures, and an upper limitation on each substation’s volume flow rate. We show that imposing up to to 18 % load flexibility for the customers provides an equal reduction in the peak system flow rate under the load shifting strategy. The limited return temperature strategy is less efficient at curtailing the peak flow rate, but provides an overall reduction of volume flow rates. Finally, the flow rate limitation method can introduce new, higher flow rate peaks, reducing performance.}},
author = {{Agner, Felix and Trabert, Ulrich and Rantzer, Anders and Orozaliev, Janybek}},
issn = {{2666-9552}},
language = {{eng}},
month = {{01}},
publisher = {{Elsevier}},
series = {{Smart Energy}},
title = {{A data-based comparison of methods for reducing the peak volume flow rate in a district heating system}},
url = {{https://arxiv.org/abs/2403.16738}},
year = {{2024}},
}